Maybe. I try to make each comic as self contained as possible, but that's just not always possible. In any case this is the second part of this new story arc with the mom. The first one started a few months ago and went on for a bit.
The first comic from that initial run was here: www.thefrumps.com/comic/2016/05/02/playboy-centerfold

Allow me to answer your questions. Virgil (the guy in green) is generally the "asshole" of my comic. And yes his girlfriend does get jealous of his childhood crush he has towards her mother who was in an issue of Playboy he had a child. What person wouldn't?

As for why she doesn't leave him? Well... to be honest the conflict and clash is part of the fun I have with these two characters. It's not that they don't love each other, it's just more fun to show couples in conflict.

Maybe. I try to make each comic as self contained as possible, but that's just not always possible. In any case this is the second part of this new story arc with the mom. The first one started a few months ago and went on for a bit.
The first comic from that initial run was here: www.thefrumps.com/comic/2016/05/02/playboy-centerfold

Because Digimon don't have magical balls to carry them around in. And their evolved forms are massive. (Lore-wise, they don't choose to revert back. The human partner provides the digimon energy to evolve, and when that energy runs out they revert back. The stronger the form evolve to, the further they revert back. Until they get acclimated to that form, anyway, then they only revert back to growth aka rookie stage)

Well, unlike in Pokemon where they have Pokeballs, having a Charizard that could revert back to a Charmander is kinda like the travel size version- so it saves space, weight and presumably energy as the bigger the creature, the bigger the stomach.